Answer: mountain roads are winding and gently sloping in order to reduce the effect of steepness which causes more downward gravitational pull to the vehicle on it . A steeper sloped road would slow the car down to a greater extent that an gently sloping one.
Explanation:
 
        
             
        
        
        
Answer:
Early experiments on children don't fit today's standards of ethical treatment.
Explanation:
Today,  because of advances in ethical considerations scientists would not conduct this experiment never the less get approved to do it because an infant would not be able to speak up and make decisions.
 
        
             
        
        
        
Answer:
A&B
Explanation:
Plants will thrive and Bacteria will thrive